Word Stems

List 18 – Day One

1. atmo

• Definition- Vapor• atmosphere – mass of air around the earth (vapor plus sphere)

2. cardio

•Definition- Heart•cardiology – study of the heart and its diseases

3. cosmo

• Definition- World or Universe

• cosmology – branch of astronomy that deals with the origin and structure of the universe

4. counter

• Definition- against• counterclockwise – in a direction against or opposite of the normal direction of clock hands

5. cranio

•Definition- Skull•craniology – study of the size, shape and proportion of skulls.

6. cyclo

• Definition- circle• encyclopedia – course or circle

of general education that contains information on all branches of knowledge

• Bicycle, recycle, cyclone

Word Stems

List 18 – Day Two

7. gno• Definition- know• prognosis ( to know before) as in the prospect of recovery from a disease

• Ignorant, ignore

8. oss

•Definition-bone•ossify – to make (fy) or change into bone

9. xylo• Definition-wood• xylophagous – feeding on wood

• xylography – the art of making engravings in wood

10. monger

• Definition- seller• warmonger – one who sells or urges war. One who attempts to stir up war

11. sept

• Definition- seven• September – 7th month (9th

month of the Gregorian calendar)

• septuagenerarian – a person who is in their 70’s

12. xeno

• Definition - stranger

•xenophobia – fear of strangers

Word Stems

List 18 – Day Three

13. vas

• Definition - vessel• vascular – relating to a channel for the movement of fluids such as blood.

14. fore

•Definition - front•forehead – the front of the head

15. -ish

• Definition- like• snobbish – like a snobb• foolish – like a fool• childish – like a child

16. -less

• Definition - without• hopeless – without hope• meaningless – without

meaning• worthless – without worth• careless – without care

17. baro

• Definition - pressure•barometer – intrument used to measure air pressure

18. ferro

• Definition - iron• ferroconcrete – concrete reinforced with iron rods

Word Stems

List 18 – Day Four

19. quasi

• Definition - somewhat• quasi-military – somewhat military

• quasi-public – somewhat public

20. nesia

•Definition - island•Micronesian – native of Micronesia (small island)

21. lepsy

• Definition- attack• narcolepsy – a condition characterized by brief attacks of deep sleep

22. -let

• Definition - little• piglet – a little pig• hamlet – a little village• droplet – a little drop of water

23. nano

• Definition- billionth• nanosecond – one billionth of a second

• nanogram – one billionth of a gram

24. pico

• Definition-trillionth• picogram – one trillionth of a gram

• picosecond – one trillionth of a second

25. ideo

• Definition- Idea• ideogram – picture or

symbol that represents an idea (I love you.)

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